What happens to my string data?

Mex problem for you....
Trying to convert a perfectly well behaved C struct of string
variables to plhs[0] I added this code to check what was about to be
returned return:

for(int j=0;j<NUM_FIELDS;j++){

mexPrintf("%s:
%s\n",mxGetFieldNameByNumber(plhs[0],j),mxArrayToString(mxGetFieldByNu
mber(plhs[0],0,j)));

}
some of the data (mostly numerical strings) were good, some where
bad. How did that happen?

Note: I populated plhs[0] with something similar to this:

mxSetField(plhs[0],0,"M_Field_Name",mxCreateString(C_Struct->C_Fiel
d_Name));

Or am I going dotty in my old age?

Thanks if you can see what's up

Tim
.

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